package com.wwj.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.wwj.reggie.common.R;
import com.wwj.reggie.entity.Employee;
import com.wwj.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;

/**
 * 员工管理
 */

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {

    @Autowired
    private EmployeeService employeeService;

    /**
     * 员工登录
     * @param request
     * @param employee 封装传来的Jason数据
     * @return
     */
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee) {

        //1、将页面提交的密码进行md5加密处理
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());

        //2、根据提交的用户名查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername, employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);

        //3、未查询到用户名，返回登录失败结果
        if (emp == null){
            return R.error("未找到用户名！！！");
        }

        //4、密码对比，不一致则返回登录失败结果
        if (!emp.getPassword().equals(password)){
            return R.error("密码输入错误，请重新输入！！！");
        }

        //5、查询员工状态码，禁用状态则返回禁用结果
        if (emp.getStatus() == 0){
            return R.error("账号已被禁用！！！");
        }

        //6、登录成功，将id存入session并返回结果
        request.getSession().setAttribute("employee", emp.getId());

        return R.success(emp);
    }

    /**
     * 员工退出
     * @param request
     * @return
     */
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){

        //1、清除session中当前登录用户的id
        request.getSession().removeAttribute("employee");

        return R.success("退出成功");
    }

    /**
     * 新增员工
     * @param employee
     * @return
     */
    @PostMapping
    public R<String> save(HttpServletRequest request, @RequestBody Employee employee){
        log.info("新增员工信息：{}", employee.toString());

        // 设置初始密码“123456”，md5加密处理
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));

        //employee.setCreateTime(LocalDateTime.now());
        //employee.setUpdateTime(LocalDateTime.now());

        //获取当前用户ID
        //Long empId = (Long) request.getSession().getAttribute("employee");

        //employee.setCreateUser(empId);
        //employee.setUpdateUser(empId);

        employeeService.save(employee);

        return R.success("添加成功！");
    }

    /**
     * 分页显示员工信息
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page>  page(int page, int pageSize, String name){
        log.info("page = {}, pageSize = {}, name = {}", page, pageSize, name);

        //构造分页构造器
        Page pageInfo = new Page(page, pageSize);

        //构造条件构造器
        LambdaQueryWrapper<Employee> lqw = new LambdaQueryWrapper();
        //添加过滤条件
        lqw.like(StringUtils.isNotEmpty(name), Employee::getName, name);
        //添加排序条件
        lqw.orderByDesc(Employee::getUpdateTime);

        //执行查询
        employeeService.page(pageInfo, lqw);

        return R.success(pageInfo);
    }

    /**
     * 根据Id修改员工信息
     * @param request
     * @param employee
     * @return
     */
    @PutMapping
    public R<String> updateById(HttpServletRequest request, @RequestBody Employee employee){
        log.info(employee.toString());

        //employee.setUpdateTime(LocalDateTime.now()); //最后修改时间

        //Long updateUserId = (Long) request.getSession().getAttribute("employee"); //获取修改人id
        //employee.setUpdateUser(updateUserId);

        employeeService.updateById(employee);

        return R.success("修改成功！");
    }

    /**
     * 根据ID查询员工信息
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){

        Employee employee = employeeService.getById(id);

        if (employee != null){
            return R.success(employee);
        }

        return R.error("没有查询到对应员工信息！！！");
    }
}
